Article of repose for supporting the body of a person



March 23, 1954 J, LUCKHARDT 2,672,918

ARTICLE OF REPOSE FOR SUPPORTING THE .BODY OF A PERSON Filed Feb. 12, 1952 2 Sheets-Sheet 1 INVENTOR JOHFINNES LUCKHHRDT ATTORNEY March 23, 1954 LUCKHARDT 2,672,918

I ARTICLE OF REPOSE FOR SUPPORTING THE BODY OF'-A PERSON Filed Feb. 12, 1952 2 Sheets-Sheet 2 INVENTOR JOHHNNES LUCKHQRDT BY v A ATTORNEY I 1 chime This" invention relates to: 'arsitioles ot 'furnitfire 'and more particuierIy-to articles of rep'ose fo' r supporting the body of a. prs'ohend be'ifl'g' equipped with" a. consti'indinkage with "sta tionery .link'm'ea'ns and afipliiri-lityfof mdvlhle links, the seat-and the becki estioi mih'g,inovable links of 'suoh e t:onls'tr iiin'e'd li'nlielei v object oi the present invention is' to pro vide an artieIe of repose-Trot sup orting. the bod y of e persoh whereinithe s at "the max-rest; and a leg-rest; connected with-tfie bo'nstrained' linlilage of the-a;rti1'e 'maly be i 'aFdfly mb'veq' mm a sitting position into a. cdmiortfifil'e reblined' position'orvie i'er'sif I I (7 Another" bkij eet or present mv'en't'ian is to provide article or repose for suiiiiorting the b'O dy' of'a, person WhiEh eeieaauymmamcturemtiowcostsf; 1 v v e A fuithefol'ojecfof the? iifisiit invention is "to improve-mime dristffiiitinfb giiatiblS of'fuinitiires" dwfiiustolfiiaiily v I Otherobjeetsuel d4stif16t""'1"det11s oftheinventiqn wilrbea sareiit fthifoiro m "1 ae; Sci'ipfiibii' 'Wfi'eii- 756511 In? con im'tidli the 2101f companyiiig'f drlvififisifoifiififg ijaiit-"of this ifib'atibif'whefbifi Fig; 5 is' a side "elevation'ai "'viewof a different embodiment of a reclining chair. accor'dingto 'the invention,

heeled-est; pi votail c regal: conneetin bar}? of he su'pbort 20 b e inge or thef iik A 1 fi lin s iiivot'editothefront real 'n ofjsaid link Ellis pivnd-igf an'auxing'ry link 56 t am or; said auxiliary 1 tpe'r'rdnp connecting Tfie'lower end are convojzallyieonnected 5t 62 with 6. The u per" end or said Thus gll inliffi'fl 'i'siiiioted 'at at to the seat t on of the" subpo'rt' between Winni ge .i eicn m r i iie eee we... fi' l Zia-ek 9mm chair f he sitting position shbwn in Fig. 1 into the meme Fig. 2 hr leaning the weight of it 1 fi qkr 4- O b hand, the n gyqblg mempersof the-ohair may be e fi w m wd m n rr i b shown, in Fig. -=2 into the" sitting position shown w s x r:zp ssure: t th 'l he-rmovable members of the chair may be held in any desired position by the following locking device:

.. According to Figs. 1-3 the front end of a locking bar 66 is swingably mounted on the pivot 54 joining the links 50 and 56. The spindle 68 of a locking screw I is threaded into a threaded bore of a U-shaped member 12 attached to the lower surface of the seat 30. The locking bar 66 passes between the legs of the U-shaped member 12. If it is desired to hold the movable members of the chair in a predetermined position, the locking screw I0 is tightened, whereby the locking bar 66 is pressed against one leg of the U-shaped member I2 for fixing the position of the movable members of the chair. Upon loosening the look-- ing screw 10, the movable members of the chair may be readily released. I

The sitting position of the movable members of the chair is limited by an abutment of the link 56 against the front edge of said U-shaped member 12 (see Figs. 1 and 3). The extreme reclined position of the movable members of the chair is limited by the abutment of a flange 14, arranged at the rear end of the locking bar 66, against the rear edge of said U-shaped member 12 (see Fig. 2).

As shown in Figs. 1-3, the auxiliary link 56 is provided with a slot 16 extending along the axis of said link 56. The pivot connecting the auxiliary link 56 with the connecting link 66 passes through said slot 16 and may be adjusted by suitable adjusting means in any desired position along the slot 16. Thus, the relative movements of the movable members of the chair may be modified by an adjustment of said pivot 62 in a different position. It is understood that after such an adjustment and during movements of the movable members of the chair from one position to another one said pivot 62 remains in its set position relative to the auxiliary link 56.

According to the embodiment shown in 5, both the seat I30 and the back-rest I34 are pivotally connected with the support I20 at I33 in coaxial alignment. The arrangement and the connections of the remaining movable links of the constrained linkage, i. e. the top link I38, the front link I44, the link I50, the link I56 and the connecting link I60 are identical with the arrangement and connections shown in the embodiment of Fig. 1. Again the leg-rest I48 is integral with the front link I44.

According to the embodiment shown in Fig. 6 the seat 230 and the back-rest 234 are pivoted to the support 220 at spaced points 232 and 236, respectively. The rear end of the top link 238 is pivoted to an intermediary point 240 of the backrest 234. The front end of said top link 238 is pivoted at 242 to the front link 244, which is pivoted to the seat 230 at the point 246 intermediate its ends. One end of the link 250 is pivoted at 252 to the lower end of the front link 244. The rear end of said link 250 is pivoted at 254 to one end of the auxiliary link 256, the other end of which is swingably mounted on the support 220 at 258. One end of the connecting link 260 is pivoted at 262 to the auxiliary link 256, the other end of said connecting link is pivoted to the seat 230 at 264. g

The leg-rest 248 is swingably mounted at 218 on the front end portion of the seat. The movements of said leg-rest 248 are controlled by a controlling link 280, the front end of which is pivoted at 282 to the leg-rest 248 and the rear end of which is pivoted at 284 to a downward extension of the back-rest 234 rigid with the latter.

According to the embodiment of Fig. 'I the seat 330 and the back-rest 334 are Jointly pivoted to the support 320 at 333. The link chain of the constrained linkage comprises again the top link 338, the front link 344, the link 350 and the auxiliary link 356. One end of said link chain is pivoted at 340 to the back-rest 334, the other end of said link chain is pivoted to the support 320 at 358. One end of the connecting link 360 is pivoted at 362 to the auxiliary link 356, the other end of said connecting link 360 is pivoted at 364 to the seat 330.

The leg-rest 348 is swingably mounted on the front end portion of the seat 330 at 318. A downward extension 388 of the front link 344, rigid with the latter, carries a roller 390 journalled thereon. A spring 392 wound around the pivot 318 and engaged with the leg-rest 348 tends to hold the latter in abutting engagement with said roller 390. The movements of the leg-rest 348 are controlled by the movements of the extension 388 carrying the roller 390, in dependence on movements of the front link 344.

The arrangements and connections of the movable links 430, 434, 438, 444, 450, 456 and 460 of the constrained linkage of thechair shown in Fig. 8 are identical with the arrangements and connections of the corresponding movable links of the linkage of the chair shown in Fig. 7. The movements of the leg-rest 448 swingably mounted on the seat 430 at 418, however, are controlled by a controlling link 494, one end of which is pivoted at 462 to the leg-rest, the other end of which is pivoted at 496 to a downward extension 488 rigid with the front link 444.

I have described preferred embodiments of my invention, but it is understood that this disclosure is for the purpose of illustration and that various omissions or changes in shape, proportion and arrangement of parts, as Well as the substitution of equivalent elements for those herein shown and described may be made without departing from the spirit and scope of the invention asset forth in the appended claims.

For example, each of the chairs shown in Figs. 5-8 may be provided with limiting means for limiting extreme positions of the movable members of the chair and/or with a locking device for holding the movable members of the chair in a desired position, as shown in Fig. 1.

Of course, the limiting means and/or the lockin means could be'replaced by means of different constructions.

Furthermore, the auxiliary link forming the end link of the link chain pivoted to the support could be straight, as shown in the diagrammatical Fig. 4 rather than curved as shown in the other figures.

Also, any other means for setting the pivot 62 between the links 56 and 60 in a predetermined position may be used instead of the arrangement shown in Figs. 1-3.

What I claim is:

1. In an article of repose for supporting the body of a person, the combination of: a support, a seat-structure, a back-rest structure, means pivotally connectin at least one of said seat and back-rest structures with said support, a chain of links including a first link arranged at one of its ends and pivoted to said back-rest structure, a second link pivoted to said first link, a third link pivoted to said second link, and a fourth link pivoted to said third link and arranged at the other end of said chain of links, said second link being in pivotal connection with said seat-structure, said fourth link being pivoted to said support, a connecting link pivoted at one of its ends to said seat-structure and at its other end to said fourth link, said seat-structure, said backrest structure, said chain of links and said connecting link forming the movable links of a constrained linkage composed of stationary linkmeans and a plurality of movable links, the stationary link-means of said constrained linkage being included in said support, and a leg-rest connected with a movable link of said constrained linkage.

2. In an article of repose for supporting the body of a person as claimed in claim 1, said second link of the chain of links being pivoted to said seat-structure at an intermediate point located between its pivotal connection with the adjacent links of the chain.

3. In an article of repose for supporting the body of a person as claimed in claim 1, the pivotal connection between said connecting link and said seat-structure being located between the rear end of the latter and the pivotal connection of the latter with the second link of the chain of links.

4. In an article of repose for supporting the body of a person as claimed in claim 1, said connecting link being pivoted to said fourth link of the chain of links at a point located between the pivotal connections of said fourth link with said support and said third link of the chain of links.

5. In an article of repose for supporting the body of a person as claimed in claim 1, said fourth link being curved between its pivotal connections with the support and the adjacent third link of the chain of links.

6. In an article of repose for supporting the body of a person as claimed in claim 1, the pivotal connection between said connecting link and the fourth link of the chain of links being adjustable in the direction of the axis of said fourth link. I

'7. In an article of repose for supporting the body of a person as claimed in claim 1, said means pivotally connecting said seat-structure and said back-rest structure at spaced points to said support.

8. In an article of repose for supporting the body of a person as claimed in claim 1, said means pivotally connecting said seat-structure and said back-rest structure at coaxially aligned points to said support.

9. In an article of repose for supporting the body of a person as claimed in claim 1, said legrest being rigid with said second link of the chain of links.

10. In an article of repose for supporting the body of a person as claimed in claim 1, said means pivotally connecting said seat-structure and said back-rest structure at spaced points to said support, and said leg-rest being rigid with said second link of the chain of links.

11. In an article of repose for supportin the body of a person as claimed in claim 1, said means pivotally connecting said seat-structure and said back-rest structure at coaxially aligned points to said support, and said leg-rest being rigid with said second link of the chain of links. I

12. In an article of repose for supporting the body of a person as claimed in claim 1, said legrest being swingably mounted on said seat-structure, and controlling means, interposed between a link of said linkage and said leg-rest, for eiIecting movements of the latter in coordination with movements of said linkage.

13. In an article of repose for supporting the body of a person as claimed in claim 1, said legrest being swingably mounted on said seat-structure, and controlling means, interposed between a movable link of said linkage and said leg-rest, for effecting movements of the latter in coordination with movements of said movable link.

14. In an article of repose for supporting the body of a person as claimed in claim 1, said legrest being swingably mounted on said seat-structure, and a controlling link pivoted at one of its ends to a movable link of said linkage and at'its other end to said leg-rest.

15. In an article of repose for supporting the body of a person as claimed in claim 1, said legrest being swingably mounted on said seat-structure, said back-rest structure including a downward extension, and a controlling link pivoted at one of its ends to said downward extension and at its other end to said leg-rest.

16. In an article of repose for supporting the body of a person as claimed in claim 1, said legrest being swingably mounted on said seat-structure, and a controlling link pivoted at one of its ends to said second link of the chain of links and. at its other end to said leg-rest.

17. In an article of repose for supporting the body of a person as claimed in claim 1, said legrest being swingably mounted on said seat-structure, and cooperating abutting surfaces on a movable link of said linkage and said leg-rest for effecting movements of the latter in coordination with movements of said movable link.

18. In an article of repose for supporting the body of a person as claimed in claim 1, said legrest being swingably mounted on said seat-structure, and cooperating abutting surfaces on said second link of the chain of links and said legrest for effecting movements of the latter in coordination with movements of said movable link.

J OHANNES LUCKHARDT.

References Cited in the file of this patent UNITED STATES PATENTS Number 

